Stainless steel heavy-duty quick connector

Abstract

The utility model discloses a stainless steel heavy -duty quick -coupling relates to quick -coupling technical field, the utility model discloses a connector, the surface fixedly connected with drive assembly of connector, the surface of drive assembly is engaged with fixed component, both sides of connector all swing to be connected with pipeline, the fixed component sets up the junction between pipeline and connector. The utility model gear ring drive gear, screw rod stable transmission, screw rod drive limit block removes, and the fixed component is clamped in the block and is embedded with the embedded groove, and the limit block is pressed tightly pipeline, and then the guidance of limit block is cooperated with slide and support plate, can avoid pipeline axial or radial displacement because of vibration, conveying pressure, prevent the connection from falling off, need not frequent overhaul maintenance, reduce the pipeline conveying interruption risk greatly, provide reliable connection guarantee for the heavy -duty pipeline conveying of aviation, petroleum, chemical industry etc. field, reduce the inconvenience of use because of the joint falling off.

Description

Technical Field

[0001] This utility model belongs to the field of quick coupling technology, and in particular relates to a stainless steel heavy-duty quick coupling. Background Technology

[0002] With the accelerating pace of industrialization and urbanization, the application scope of various machines and instruments is expanding daily, making quick couplings an indispensable component in this field. A quick coupling is a component that allows for the rapid connection and disconnection of pipelines without shutting down the system. It is used in many fields, such as aviation, military, shipbuilding, petroleum, chemical, machinery, and medical applications.

[0003] Chinese patent application CN221121381U discloses a stainless steel quick coupling comprising a coupling body, a first limiting ring, an O-ring, a nut, a sleeve, a second limiting ring, and a through cavity. The coupling body is located at the top of the coupling, with the first limiting ring on its lower side. An O-ring is located outside the first limiting ring, and a nut is located below the O-ring. A sleeve is connected below the nut, and a second limiting ring is located at the bottom of the sleeve. The coupling body has a through cavity inside. This stainless steel quick coupling features a threadless design, enabling quick connection and disassembly, saving time and effort, and facilitating replacement. The use of an O-ring provides excellent sealing, preventing liquid or gas leakage.

[0004] While this patented technology enables rapid connection, it lacks a fixed structure, making it prone to detachment during later use and causing significant inconvenience to pipeline operations. Therefore, we provide a heavy-duty stainless steel quick coupling to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a heavy-duty stainless steel quick coupling, which solves the problem that existing quick couplings do not have a fixing structure and are prone to falling off during later use by cooperating with the fixing component and the driving component.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a heavy-duty stainless steel quick connector, comprising a connector head, a drive assembly fixedly connected to the surface of the connector head, a fixing assembly engaged with the surface of the drive assembly, pipes movably connected to both sides of the connector head, and the fixing assembly disposed at the connection between the pipes and the connector head. The drive assembly includes a gear ring fixedly connected to the surface of the connector head via bearings, a gear engaged with the surface of the gear ring, a lead screw fixedly connected to the shaft of the gear, bearing seats fixedly connected to both sides of the lead screw, one end of the bearing seat fixedly connected to the surface of the connector head, and the fixing assembly including slots formed on both sides of the connector head and limiting blocks threaded to both ends of the lead screw. A locking block is slidably connected to the inner cavity of the slot, the other side of the locking block is fixedly connected to the pipe, a sliding rod is slidably connected to the top of the inner cavity of the limiting block, a support plate is fixedly connected to one end of the sliding rod, and one end of the support plate is fixedly connected to the bearing seat.

[0008] The present invention is further provided that a groove is provided on the opposite side of the pipe and the connector, and a sealing ring is fitted into the inner cavity of the groove. The groove fitted with the sealing ring can fill the gap between the two mating surfaces, enhance the sealing performance of the connection, and effectively prevent the liquid or gas transported by the pipe from leaking from the mating gap.

[0009] The present invention is further configured such that handles are fixedly connected to both sides of the gear ring, and rubber sleeves are provided on the surface of the handles. The handles provide the operator with a force application point, making it convenient to rotate the gear ring to drive the component to operate.

[0010] The present invention is further configured such that the thread of the lead screw is reversed, and the inner cavity of the limiting block is provided with a threaded hole for use with the lead screw. The reverse thread design of the lead screw, in conjunction with the threaded hole in the inner cavity of the limiting block, allows the limiting blocks at both ends to move synchronously in opposite directions when the lead screw rotates, ensuring that the fixing or loosening actions on both sides of the pipeline are carried out synchronously.

[0011] The present invention is further configured such that a sliding hole is provided at the top of the inner cavity of the limiting block, and the sliding rod slides in the inner cavity of the sliding hole. The sliding hole provides a stable sliding guide for the sliding rod, ensuring that the sliding rod moves the limiting block with accurate direction.

[0012] The present invention is further provided that both ends of the lead screw are fixedly connected with anti-detachment blocks, which can limit the movement range of the limiting blocks on the lead screw and prevent the limiting blocks from falling off from both ends of the lead screw due to excessive rotation of the lead screw.

[0013] The present invention is further provided that the surface of the gear ring is provided with a weight reduction groove, which reduces the overall weight of the gear ring and reduces the load on the connector without affecting the structural strength of the gear ring.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a gear ring to drive a gear and a lead screw for stable transmission. The lead screw drives the limit block to move. The locking block in the fixing component engages with the fitting groove, and the limit block abuts against the pipeline. In addition, the sliding rod and support plate guide the limit block, which can prevent the pipeline from axial or radial displacement due to vibration and transportation pressure, prevent the connection from falling off, eliminate the need for frequent inspection and maintenance, greatly reduce the risk of pipeline transportation interruption, provide reliable connection guarantee for heavy pipeline transportation in aviation, petroleum, chemical and other fields, and reduce the inconvenience caused by joint falling off.

[0016] 2. This utility model allows the lead screw to rotate by rotating the gear ring, and the reverse thread design of the lead screw enables the limit blocks at both ends to move synchronously, realizing rapid installation and disassembly of the pipeline. Compared with traditional threaded connections, it is more time-saving and labor-saving. At the same time, the stable operation of the fixing components can help ensure the accuracy of the connection between the pipeline and the connector, ensure that the sealing ring is fully fitted, and reduce the risk of liquid or gas leakage. In addition, the design of the gear ring handle and rubber sleeve further reduces the difficulty of operation, adapts to various heavy-duty pipeline usage scenarios, and improves the overall operating comfort and sealing reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a heavy-duty stainless steel quick coupling.

[0019] Figure 2 This is a cross-sectional schematic diagram of a stainless steel heavy-duty quick coupling.

[0020] Figure 3 This is an exploded schematic diagram of a stainless steel heavy-duty quick coupling.

[0021] Figure 4 This is an exploded cross-sectional view of a stainless steel heavy-duty quick coupling.

[0022] Figure 5 This is a schematic diagram of the connection structure between the connector, the fixing component, and the driving component in a stainless steel heavy-duty quick coupling.

[0023] In the attached diagram: 1. Connector; 2. Drive assembly; 21. Gear ring; 22. Gear; 23. Lead screw; 24. Bearing seat; 25. Anti-detachment block; 3. Fixing assembly; 31. Slot; 32. Limiting block; 33. Locking block; 34. Slide rod; 35. Support plate; 4. Pipe; 5. Groove; 6. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1 Please see Figure 1-5 This utility model is a stainless steel heavy-duty quick connector, including a connector 1, a drive assembly 2 fixedly connected to the surface of the connector 1, a fixing assembly 3 meshing with the surface of the drive assembly 2, pipes 4 movably connected to both sides of the connector 1, and the fixing assembly 3 disposed at the connection between the pipes 4 and the connector 1. The drive assembly 2 includes a gear ring 21 fixedly connected to the surface of the connector 1 by bearings, a gear 22 meshing with the surface of the gear ring 21, a lead screw 23 fixedly connected to the shaft of the gear 22, bearing seats 24 fixedly connected to both sides of the surface of the lead screw 23, one end of the bearing seat 24 fixedly connected to the surface of the connector 1, and the fixing assembly 3 includes a slot 31 opened on both sides of the connector 1 and a limiting block 32 threadedly connected to both ends of the lead screw 23. A locking block 33 is slidably connected to the inner cavity of the slot 31, the other side of the locking block 33 is fixedly connected to the pipe 4, and a sliding rod 34 is slidably connected to the top of the inner cavity of the limiting block 32. A support plate 35 is fixedly connected to one end of the sliding rod 34, and one end of the support plate 35 is fixedly connected to the bearing seat 24.

[0026] Specifically: the connector 1 is used to connect the two pipes 4. The surface of the drive component 2 is engaged with the fixing component 3 by gear teeth. The fixing component 3 can be displaced under the drive component 2 to fix the connection between the pipe 4 and the connector 1. The support plate 35 has a sheet-like structure and forms an axial limit on the slide rod 34 to prevent the slide rod 34 from coming out of the limiting block 32.

[0027] Example 2 Please see Figure 1-5 Based on Embodiment 1, grooves 5 are provided on opposite sides of pipe 4 and connector 1. A sealing ring 6 is fitted into the inner cavity of groove 5. Handles are fixedly connected to both sides of toothed ring 21. Rubber sleeves are fitted onto the surface of the handles. The thread of lead screw 23 is designed in reverse. A threaded hole for use with lead screw 23 is provided in the inner cavity of limiting block 32. A sliding hole is provided at the top of the inner cavity of limiting block 32. Sliding rod 34 slides in the inner cavity of the sliding hole. Anti-detachment blocks 25 are fixedly connected to both ends of lead screw 23. Weight reduction grooves are provided on the surface of toothed ring 21.

[0028] Specifically: the groove 5 fits the sealing ring 6, filling the gap between the mating surfaces of the two, enhancing the sealing performance of the connection, and effectively preventing the liquid or gas transported by the pipe 4 from leaking from the mating gap; the handle provides the operator with a point of force to facilitate the rotation of the gear ring 21 to drive the component 2; the reverse thread design of the screw 23, in conjunction with the threaded hole in the inner cavity of the limit block 32, allows the screw 23 to rotate and drive the limit blocks 32 at both ends to move synchronously in opposite directions, ensuring that the fixing or loosening actions on both sides of the pipe 4 are carried out synchronously; the sliding hole provides a stable sliding guide for the slide rod 34, ensuring that the slide rod 34 moves the limit block 32 in a precise direction; the anti-detachment block 25 can limit the range of movement of the limit block 32 on the screw 23, preventing the limit block 32 from falling off the ends of the screw 23 due to excessive rotation of the screw 23; the weight reduction groove reduces the overall weight of the gear ring 21 without affecting the structural strength of the gear ring 21, thus reducing the load on the connector 1.

[0029] The working principle of this utility model is as follows: First, align the two pipes 4 with the two ends of the connector 1 respectively, so that the locking block 33 on the pipe 4 slides into the locking groove 31, and at the same time, make the sealing ring 6 in the groove 5 on the opposite side of the connector 1 fit into place. Then, rotate the connector 1 to complete the initial docking of the pipe 4 and the connector 1. Then, rotate the handles on both sides of the gear ring 21 to drive the gear ring 21 to rotate around the bearing on the surface of the connector 1. The gear ring 21 meshes with the gear 22 through the gear teeth, driving the gear 22 to rotate synchronously. When the gear 22 rotates, it drives the lead screw 23 to rotate under the support of the bearing seat 24. Because the lead screw 23 has a reverse thread, the limiting blocks 32 at both ends of it move synchronously towards each other under the action of the thread. During the movement of the limiting blocks 32, their internal The slide rod 34 at the top of the cavity slides along the sliding hole. The support plate 35 provides axial limiting and guiding for the slide rod 34, ensuring that the limiting block 32 moves stably and gradually presses against the outer surface of the pipe 4. At the same time, the locking block 33 on the pipe 4 and the locking groove 31 of the connector 1 form an engagement limiting, ultimately achieving a stable fixation between the pipe 4 and the connector 1. When disassembling the pipe 4, the gear ring 21 is rotated in the opposite direction. The gear ring 21 drives the gear 22 and the lead screw 23 to rotate in the opposite direction. The limiting blocks 32 at both ends of the lead screw 23 move synchronously in the opposite direction under the action of the reverse thread, releasing the pressing limiting on the pipe 4. At this time, the pipe 4 is rotated and pulled away from the connector 1, so that the locking block 33 slides out of the engagement groove, thus separating the pipe 4 from the connector 1 and completing the disassembly operation.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A heavy-duty stainless steel quick coupling, comprising a connector (1), characterized in that: A drive assembly (2) is fixedly connected to the surface of the connector (1), and a fixing assembly (3) engages with the surface of the drive assembly (2). Pipes (4) are movably connected to both sides of the connector (1), and the fixing assembly (3) is located at the connection between the pipe (4) and the connector (1). The drive assembly (2) includes a gear ring (21) fixedly connected to the surface of the connector (1) by bearings. A gear (22) meshes with the surface of the gear ring (21). A lead screw (23) is fixedly connected to the shaft of the gear (22). Bearing seats (24) are fixedly connected to both sides of the surface of the lead screw (23). One end of the bearing seat (24) is fixedly connected to the surface of the connector (1). The fixing component (3) includes a slot (31) on both sides of the connector (1) and a limiting block (32) threaded to both ends of the lead screw (23). The inner cavity of the slot (31) is slidably connected to a block (33), and the other side of the block (33) is fixedly connected to the pipe (4). The top of the inner cavity of the limiting block (32) is slidably connected to a slide rod (34), and one end of the slide rod (34) is fixedly connected to a support plate (35). One end of the support plate (35) is fixedly connected to a bearing seat (24).

2. The stainless steel heavy-duty quick coupling according to claim 1, characterized in that: The pipe (4) and the connector (1) are provided with grooves (5) on opposite sides, and a sealing ring (6) is fitted into the inner cavity of the groove (5).

3. A heavy-duty stainless steel quick coupling according to claim 1, characterized in that: Both sides of the toothed ring (21) are fixedly connected to handles, and the surface of the handles is covered with rubber sleeves.

4. A heavy-duty stainless steel quick coupling according to claim 1, characterized in that: The screw (23) has a reverse thread design, and the inner cavity of the limiting block (32) has a threaded hole for use with the screw (23).

5. A heavy-duty stainless steel quick coupling according to claim 1, characterized in that: The top of the inner cavity of the limiting block (32) is provided with a sliding hole, and the sliding rod (34) slides in the inner cavity of the sliding hole.

6. A heavy-duty stainless steel quick coupling according to claim 1, characterized in that: Both ends of the lead screw (23) are fixedly connected with anti-detachment blocks (25).

7. A heavy-duty stainless steel quick coupling according to claim 1, characterized in that: The surface of the gear ring (21) is provided with a weight reduction groove.

Images